read-header-from-file

Called to handle a named header that is found when reading buffer data from a stream. The return value is #t if there are no errors, #f otherwsie.

Override this method, but to embellish the file format with new header information. Always call the inherited method if the derived reader does not recognize the header.

• (send a-wx:media-buffer read-header-from-file stream name) -> boolean
      stream : wx:media-stream-in% object
      name : string

  See also File Formats.